Example usage for org.apache.lucene.search IndexSearcher IndexSearcher

List of usage examples for org.apache.lucene.search IndexSearcher IndexSearcher

  1. HOME
  2. Java
  3. org.apache.lucene
  4. org.apache.lucene.search.*
  5. IndexSearcher
  6. IndexSearcher

Introduction

In this page you can find the example usage for org.apache.lucene.search IndexSearcher IndexSearcher.

Prototype

public IndexSearcher(IndexReaderContext context)

Source Link

Document

Creates a searcher searching the provided top-level IndexReaderContext .

Usage

From source file:com.dreamerpartner.codereview.lucene.SearchHelper.java

License:Apache License

/**
 * ?/*from  w  ww .  ja v a  2 s .c o m*/
 * @param module ?
 * @param fields ?
 * @param queryStr ?
 * @param sort
 * @param pageNo
 * @param pageSize
 * @return
 */
@SuppressWarnings("deprecation")
public static PageBean<Document> search(String module, String[] fields, String[] queryStr, Sort sort,
        int pageNo, int pageSize) {
    if (ArrayUtils.isEmpty(fields) || ArrayUtils.isEmpty(queryStr))
        return null;

    IndexReader reader = null;
    try {
        reader = DirectoryReader.open(FSDirectory.open(new File(LuceneUtil.getIndexPath(module))));
        IndexSearcher searcher = new IndexSearcher(reader);

        BooleanClause.Occur[] flags = new BooleanClause.Occur[fields.length];
        for (int i = 0; i < fields.length; i++) {
            flags[i] = BooleanClause.Occur.SHOULD;
        }
        Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_4_10_0);
        Query query = MultiFieldQueryParser.parse(Version.LUCENE_4_10_0, queryStr, fields, flags, analyzer);
        //
        return doPagingSearch(searcher, query, sort, pageNo, pageSize);
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        try {
            if (reader != null)
                reader.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return null;
}

From source file:com.dreamerpartner.codereview.lucene.SearchHelper.java

License:Apache License

/**
 *  /*w w  w .ja va  2s  .c o  m*/
 * @param groupField 
 * @param searchField 
 * @param searchStr 
 * @param pageNo
 * @param pageSize
 * @param orderField ?
 * @param orderFieldType ?
 * @param desc ? ??
 * @return
 */
@SuppressWarnings("deprecation")
public static Map<String, List<Document>> group(String module, String groupField, String searchField,
        String searchStr, int pageNo, int pageSize, String orderField, Type orderFieldType, boolean desc) {
    Map<String, List<Document>> result = new LinkedHashMap<String, List<Document>>(10);
    IndexReader reader = null;
    try {
        reader = DirectoryReader.open(FSDirectory.open(new File(LuceneUtil.getIndexPath(module))));
        IndexSearcher indexSearcher = new IndexSearcher(reader);
        GroupingSearch groupingSearch = new GroupingSearch(groupField);
        Sort sort = new Sort(new SortField(orderField, orderFieldType, desc));
        groupingSearch.setGroupSort(sort);
        groupingSearch.setSortWithinGroup(sort);
        groupingSearch.setFillSortFields(true);
        groupingSearch.setCachingInMB(4.0, true);
        groupingSearch.setAllGroups(true);
        //groupingSearch.setAllGroupHeads(true);
        groupingSearch.setGroupDocsLimit(pageSize);

        QueryParser parser = new QueryParser(Version.LUCENE_4_10_0, searchField,
                new StandardAnalyzer(Version.LUCENE_4_10_0));
        Query query = parser.parse(searchStr);

        TopGroups<BytesRef> groupResult = groupingSearch.search(indexSearcher, query, (pageNo - 1) * pageSize,
                pageSize);
        System.out.println("?" + groupResult.totalHitCount + ", ?"
                + groupResult.groups.length);

        List<Document> groupData = null;
        for (GroupDocs<BytesRef> groupDocs : groupResult.groups) {
            groupData = new ArrayList<Document>(pageSize);
            String groupName = groupDocs.groupValue.utf8ToString();
            for (ScoreDoc scoreDoc : groupDocs.scoreDocs) {
                groupData.add(indexSearcher.doc(scoreDoc.doc));
            }
            result.put(groupName, groupData);
            groupData = null;
        }
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        try {
            if (reader != null)
                reader.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return result;
}

From source file:com.dreamerpartner.codereview.lucene.SearchHelper.java

License:Apache License

/** Simple command-line based search demo. */
@SuppressWarnings("deprecation")
public static void main(String[] args) throws Exception {
    String module = "test";
    String field = "contents";
    String queryString = "produce";
    int pageNo = 1;
    int pageSize = 10;
    Sort sort = new Sort(new SortField("createTime", Type.LONG));

    IndexReader reader = DirectoryReader.open(FSDirectory.open(new File(LuceneUtil.getIndexPath(module))));
    IndexSearcher searcher = new IndexSearcher(reader);
    // :Post-Release-Update-Version.LUCENE_XY:
    Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_4_10_0);

    // :Post-Release-Update-Version.LUCENE_XY:
    QueryParser parser = new QueryParser(Version.LUCENE_4_10_0, field, analyzer);
    Query query = parser.parse(queryString);
    System.out.println("Searching for: " + query.toString(field));

    ////from  w w w .  ja v a2  s .c  o  m
    PageBean<Document> docs = doPagingSearch(searcher, query, sort, pageNo, pageSize);
    System.out.println(JsonUtil.toString(docs));
    reader.close();
}

From source file:com.dubture.indexing.core.index.DocumentManager.java

License:Open Source License

protected void init() throws Exception {

    StandardAnalyzer analyzer = new StandardAnalyzer(Version.LUCENE_29);
    MaxFieldLength length = new MaxFieldLength(255);

    index = getIndex();//from w  w w  . j  av a2 s  .c o  m
    writer = new IndexWriter(index, analyzer, length);
    writer.commit();
    reader = IndexReader.open(index, true);
    searcher = new IndexSearcher(reader);
    pendingReferences = new HashMap<IFile, List<ReferenceInfo>>();

}

From source file:com.dubture.indexing.core.index.DocumentManager.java

License:Open Source License

protected void updateReader() {
    try {/*  w ww  . ja va  2s.  com*/
        IndexReader newReader = reader.reopen();

        if (newReader != reader) {
            reader.close();
            reader = newReader;
            searcher = new IndexSearcher(reader);
            IndexingCorePlugin.debug("Updated reader");
        }
    } catch (Exception e) {
        IndexingCorePlugin.logException(e);
    }
}

From source file:com.duroty.lucene.bookmark.indexer.BookmarkIndexer.java

License:Open Source License

/**
 * DOCUMENT ME!//from ww  w .j av  a2s . c o m
 *
 * @param path DOCUMENT ME!
 *
 * @return DOCUMENT ME!
 *
 * @throws Exception DOCUMENT ME!
 */
public static Searcher getSearcher(String path) throws Exception {
    String optimizedPath = null;

    if (!path.endsWith(File.separator)) {
        optimizedPath = path + File.separator + OPTIMIZED_PATH_NAME + File.separator;
    } else {
        optimizedPath = path + OPTIMIZED_PATH_NAME + File.separator;
    }

    File file = new File(optimizedPath);

    if (!IndexReader.indexExists(file)) {
        file.mkdirs();

        IndexWriter writer = new IndexWriter(file, null, true);
        writer.close();
    }

    return new IndexSearcher(optimizedPath);
}

From source file:com.duroty.service.analyzer.LuceneFiltersAnalysis.java

License:Open Source License

public void service(String repositoryName, String messageName, MimeMessage mime)
        throws Exception, Throwable, OutOfMemoryError {
    Session hsession = null;/*from  www . j a  v  a  2s. c  o  m*/
    RAMDirectory auxDir = null;

    try {
        hsession = hfactory.openSession();

        auxDir = new RAMDirectory();

        IndexWriter auxWriter = new IndexWriter(auxDir, analyzer, true);
        auxWriter.addDocument(luceneMessage.getDocPrincipal());
        auxWriter.optimize();
        auxWriter.close();

        Vector filters = getFilters(hsession, repositoryName);

        boolean setbox = true;

        String box = message.getMesBox();

        if (box.equals("SPAM")) {
            setbox = false;
        } else if (box.equals("DRAFT")) {
            setbox = false;
        }

        if (filters != null) {
            while (filters.size() > 0) {
                Filter filter = (Filter) filters.remove(0);
                IndexSearcher auxSearcher = new IndexSearcher(auxDir);

                org.apache.lucene.search.Query query = FilterQueryParser.parse(filter, analyzer);

                Hits hits = auxSearcher.search(query);

                if (hits.length() > 0) {
                    //he tingut una coincidencia de filtre per tant cal dur a terme les accions assocides
                    //al filtre
                    if (filter.isFilArchive() && setbox) {
                        //Marco un header per a que s'inserti a la carpeta d'archived
                        message.setMesBox("HIDDEN");
                    } else if (filter.isFilTrash() && setbox) {
                        message.setMesBox("TRASH");
                    } else {
                    }

                    if (filter.isFilImportant()) {
                        message.setMesFlagged(new Boolean(true));
                    }

                    if (filter.getLabel() != null) {
                        LabMes labMes = new LabMes(new LabMesId(message, filter.getLabel()));
                        message.addLabMeses(labMes);
                    }

                    if ((filter.getFilForwardTo() != null) && !filter.getFilForwardTo().trim().equals("")) {
                        InternetAddress forwardTo = null;

                        try {
                            forwardTo = new InternetAddress(filter.getFilForwardTo());
                        } catch (Exception e) {
                            forwardTo = null;
                        }

                        if (forwardTo != null) {
                            try {
                                InternetAddress recipient = (InternetAddress) mime.getFrom()[0];
                                forwardMailFromLabel(recipient, forwardTo, "FW: ", mime);
                            } catch (Exception ex) {
                                ex.printStackTrace();
                            }
                        }
                    }
                }
            }
        }
    } catch (Exception ex) {
        DLog.log(DLog.DEBUG, this.getClass(), ex);
    } finally {
        GeneralOperations.closeHibernateSession(hsession);

        if (auxDir != null) {
            auxDir.close();
        }
    }
}

From source file:com.duroty.service.BookmarkOptimizerThread.java

License:Open Source License

/**
 * DOCUMENT ME!/*from w  ww .j a  v a 2  s  .  co  m*/
 *
 * @param childs DOCUMENT ME!
 *
 * @throws Exception DOCUMENT ME!
 */
private void flush(File[] childs) throws Exception {
    if ((childs == null) || (childs.length == 0)) {
        return;
    }

    try {
        Thread.sleep(100);
    } catch (Exception e) {
    }

    File optimized = new File(optimizedPath);
    boolean create = false;
    IndexWriter writer = null;

    try {
        if (!IndexReader.indexExists(optimized)) {
            optimized.mkdirs();
            create = true;
        }

        synchronized (this) {
            if (IndexReader.isLocked(optimizedPath)) {
                return;
            } else {
                Directory dir = FSDirectory.getDirectory(new File(optimizedPath), create);
                writer = new IndexWriter(dir, analyzer, create);
            }

            for (int i = 0; i < childs.length; i++) {
                boolean lock = true;
                File child = childs[i];
                File[] faux = child.listFiles();

                for (int j = 0; j < faux.length; j++) {
                    if (faux[j].getName().equals("is.unlock")) {
                        faux[j].delete();
                        lock = false;

                        break;
                    }
                }

                if (!lock) {
                    Directory[] aux = new Directory[1];
                    aux[0] = FSDirectory.getDirectory(child, false);

                    IndexSearcher searcher = null;

                    try {
                        searcher = new IndexSearcher(aux[0]);

                        Document doc = searcher.doc(0);

                        if (doc != null) {
                            BookmarkIndexer.createSpell(userPath + SPELL, Field_title, doc);
                            BookmarkIndexer.createSpell(userPath + SPELL, Field_keywords, doc);
                            BookmarkIndexer.createSpell(userPath + SPELL, Field_contents, doc);
                            BookmarkIndexer.createSpell(userPath + SPELL, Field_comments, doc);
                        }
                    } catch (Exception ex) {
                        if ((ex != null) && !(ex instanceof NullPointerException)) {
                            DLog.log(DLog.INFO, this.getClass(), ex);
                        }
                    } finally {
                        if (searcher != null) {
                            try {
                                searcher.close();
                            } catch (Exception e) {
                            }
                        }
                    }

                    writer.addIndexes(aux);
                    writer.optimize();

                    for (int j = 0; j < faux.length; j++) {
                        faux[j].delete();
                    }

                    child.delete();
                }
            }

            writer.close();
            writer = null;
        }
    } finally {
        if (writer != null) {
            try {
                writer.close();
            } catch (Exception e) {
            }
        }
    }
}

From source file:com.duroty.service.MailOptimizerThread.java

License:Open Source License

/**
 * DOCUMENT ME!//from   w  w w. j av  a 2s  . c  o  m
 *
 * @param childs DOCUMENT ME!
 *
 * @throws Exception DOCUMENT ME!
 */
private void flush(File[] childs) throws Exception {
    if ((childs == null) || (childs.length == 0)) {
        return;
    }

    try {
        Thread.sleep(500);
    } catch (Exception e) {
    }

    File optimized = new File(optimizedPath);
    boolean create = false;
    IndexWriter writer = null;

    try {
        if (!IndexReader.indexExists(optimized)) {
            optimized.mkdirs();
            create = true;
        }

        synchronized (this) {
            if (IndexReader.isLocked(optimizedPath)) {
                return;
            } else {
                Directory dir = FSDirectory.getDirectory(new File(optimizedPath), create);
                writer = new IndexWriter(dir, analyzer, create);
            }

            for (int i = 0; i < childs.length; i++) {
                boolean lock = true;
                File child = childs[i];
                File[] faux = child.listFiles();

                for (int j = 0; j < faux.length; j++) {
                    if (faux[j].getName().equals("is.unlock")) {
                        faux[j].delete();
                        lock = false;

                        break;
                    }
                }

                if (!lock) {
                    Directory[] aux = new Directory[1];
                    aux[0] = FSDirectory.getDirectory(child, false);

                    IndexSearcher searcher = null;

                    try {
                        searcher = new IndexSearcher(aux[0]);

                        Document doc = searcher.doc(0);

                        if (doc != null) {
                            MailIndexer.createSpell(userPath + SPELL, Field_from, doc);
                            MailIndexer.createSpell(userPath + SPELL, Field_to, doc);
                            MailIndexer.createSpell(userPath + SPELL, Field_subject, doc);
                            MailIndexer.createSpell(userPath + SPELL, Field_body, doc);
                        }
                    } catch (Exception ex) {
                        if ((ex != null) && !(ex instanceof NullPointerException)) {
                            DLog.log(DLog.INFO, this.getClass(), ex);
                        }
                    } finally {
                        if (searcher != null) {
                            try {
                                searcher.close();
                            } catch (Exception e) {
                            }
                        }
                    }

                    writer.addIndexes(aux);
                    writer.optimize();

                    for (int j = 0; j < faux.length; j++) {
                        faux[j].delete();
                    }

                    child.delete();
                }
            }

            writer.close();
            writer = null;
        }
    } finally {
        if (writer != null) {
            try {
                writer.close();
            } catch (Exception e) {
            }
        }
    }
}

From source file:com.eclipsesource.connect.search.Searcher.java

License:Open Source License

private void performSearch(LuceneSearchResult searchResult, String query) {
    try (DirectoryReader reader = DirectoryReader.open(directory)) {
        IndexSearcher searcher = new IndexSearcher(reader);
        FuzzyQuery luceneQuery = new FuzzyQuery(new Term(Indexer.CONTENT_KEY, query));
        TopDocs topDocs = searcher.search(luceneQuery, Integer.MAX_VALUE);
        populateSearchResult(searchResult, reader, topDocs);
    } catch (IOException shouldNotHappen) {
        throw new IllegalStateException(shouldNotHappen);
    }//from  ww w. j ava  2s  .c o  m
}